Concrete floor slabs may be in situ or prefabricated. This work is intended to all students of mizan teppi university, ethiopia, engineering campus, most especially to my students in construction technology and management cotm. Metal building homes building plans building a house building foundation house foundation trailer casa tyni house passive solar. Reinforced concrete slab design and detailing guide is456. Floor slab design floors are designed as slabs on grade. Design the roof slab, beam and column of house given in figure 1. The concrete slab on grade is the most popular foundation type in the southeast. With respect to the design of concrete in residential foundations, it is the intend of this course to provide reasonable safety. The contents of this stresses professional applications, as the lecturer. The tongueandgroove panel could vary in size based on the design requirement. Design, manufacture and construction of buildings with.
At home with precast concrete national precast concrete. The most common residential foundation materials are concrete masonry i. Riverside house, 4 meadows business park, station approach, blackwater. Find the following parameters for design moments in step 2 per unit width step 4 note. A traditional cottage house offers benefits you cant always get from other constructions. When a slabs length is more than twice its width l 2w then the slab can be considered a oneway slab. The use of precast latticereinforced joist slabs in reinforced concrete structures has advanced since. Preservativetreated wood, precast concrete, and other methods may also be used.
Precast concrete panels concrete column reinforced concrete concrete slab design of. Concrete slabonground floorfootings also provide a pleasing transition. A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. The construction and design of concrete slabs on grade. Manual for design and detailing of reinforced concrete to. Floor framing 19 factors in design 19 recommended nailing practices 19 posts and girders 20. The slab panels are lifted to the top of the column and then moved downwards to the. House design and shape must be designed before footing design can occur. It may be that here is a time when the owner builder has to get help, because laying slabs is an arduous, time consuming process best suited to subcontractors. Its a design that opens the house to the outdoors in an unusual but great way. Structural concrete structures reinforced concrete construction.
Design of slab for flexure 067 m unit width of slab. Manual for the design of reinforced concrete building. Choosing practical, efficient house the post a guide to cottage house plans appeared first on family home plans blog. In the ussr, flat slab column conduits were in mainstream use for. Youll need to calculate the proper watercement ratio and airentrainment requirements for the concrete mix to ensure that the slab will perform as intended. Todd sternfeld, ceo of superior concrete products, based in euless, texas, began watching the tiny home trend years ago. Reinforced concrete sk 33 section through slab showing stress due to moment. In most cases, the slab thickness is designed as an unreinforced concrete section. Macgillivray masonry and general contractors constructed a concrete masonry house in springfield, ohio, which is located approximately 40 miles west of columbus. A typical example of the decking layout for a composite floor is shown in. A one way slab will only have significant bending moments in the short direction. Over the past several years there has been a concerted effort to coordinate the requirements in.
Generally, load set 2 will be used for beams and slabs in the uk as it. The lateral loads are independently resisted by shear walls. The following is a design guide for selecting proportions for initial concrete mix design for normal weight concrete. Standard deviation for compressive strength of concrete with example pdf. Rupture depth of an unreinforced concrete slab on grade pdf. You dont have to choose the most modern or minimalist homes to fit in with the crowd, however. Plan view of floor system assume partitions will not be damaged by deflections. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. A precast concrete tiny house offers the same benefits of a fullsize precast house on a smaller scale. This slab will have significant bending acting in both directions. Wood frame construction manual wfcm continue to use asd load combinations in the development of. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete.
A reinforced concrete slab is a crucial structural element and is used to. Foreword this report is intended to serve as a manual of good practice for the design of prestressed concrete flat slabs in addition to the recommended procedures, other methods are described for the sake of completeness and to compare. Posttensioned slabcolumn connection whe report 68, serbia and montenegro poured on the ground in forms, one on top of the other, as shown in figure 11. European commission joint research centre institute for the protection and security of the citizen contact information address. A posttensioned slab onground foundation is simply a groundsupported concrete slab. Precast concrete floor slabs are lifted from the ground up to the final height by lifting cranes. This is part 4 of the video series designed to learn you how to look at a set of building blueprints and get a better idea of how the house framing assembly process works.
Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Steel design steel design software that easily designs or checks steel beams, columns and single span beam columns using the asd and lrfd standards. The structural design of a concrete floor slab on grade is primarily controlled by the stresses caused by moving live loads and in some cases the. Should it make any difference to a buyer what kind of slab onground foundation a house has. The structural design of a concrete floor slab on grade is primarily controlled by the stresses caused by moving live loads and in some cases the stationary loads. The unusually angled concrete facades offer an unexpected advantage.
Determining the right concrete mix design and reinforcement requirements for the anticipated slab exposure and traffic conditions is essential as well. For slabs spanning in both directions published tables and charts should be used to find bending moment and shear per unit width of slab. Specific design requirements for concrete floor construction are found in aci 360r for slabsonground, aci 223r for shrinkagecompensating concrete floors. Figure a 7 minnesota slabfoundation detail list of photos.
Pdf reinforced concrete slab is the most popular floor slab system used. Concrete construction how to build high quality slabs on. When the ratio between the long to short side doesnt exceed 2, a twoway slab is present. Residential foundation design options and concepts. Guide to the design and construction of reinforced concrete flat slabs contents membersof the projectsteeringgroup list of tables vii iv list of figures v 1. Manual for design and detailing of reinforced concrete to the september 20 code of practice for structural use of concrete 20 2. Guide to the design and construction of reinforced.
Durability a properly constructed concrete floor will outlast most of. When a house has a concrete slabongrade with a thickened edge forming its perimeter foundation also called a turneddown slab edge, one no. As2870 is based upon inspecting site to determine soil type and designing footing to suit both foundation and structure to be built. The main objective of this project is to analyze and design a multistory building 3ddimensional reinforce concrete frame, the design of reinforced concrete slabs, beams, columns, footings and. Steelreinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving see below. The construction and design of concrete slabs on grade d. The manual and advisory safety code of practice for concrete pumping67. In many domestic and industrial buildings, a thick concrete slab supported on. A comprehensive design is also presented for one span of precast. A slab on grade with an independent stem wall is a concrete floor supported by the soil independently of the. In general, concrete mixes are designed in order to achieve a defined workability, strength and durability. Reinforced concrete design 1 design of slab examples and.
The house was designed by steimle architekten who gave it an unusual crystallike shape. Concrete slab types construction, cost, and applications. In the middle of the 20th century, this floor slab design began to be widely used in. It consists of a floor slab, usually 50 to 100mm thick, supported by reinforced. The slab thickness depends on the type of loads on the floor slab. Reinforcing is added to control shrinkage cracking and maximize the distance between designed joints. Concrete slab floors come in many forms and can be used to provide great thermal comfort and lifestyle advantages. Design steel beam verification of bending resistance r9 to r10 7 shear resistance r11 to 12 8 serviceability limit state verification r12 9 check bearing stress within concrete padstone under the steel beam r 10 check bearing stress under the concrete padstone r14 11 replacement roof slab construction sequence r15. Dhang, department of civil engineering, iit kharagpur. Superior fabricated the model using inhouse design and labor and based. Feb 23, 2019 concrete slab design monolithic slab foundation design more recent slab on grade design information recommends and even calls for monolithic slab. Reinforcing steel for slabs is primarily parallel to slab. Twoway joist concrete slab floor waffle slab system analysis and design design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf.
A concrete slab is a common structural element of modern buildings, consisting of a flat. Placement of the house after the site is cleared, the location of the outer. One way slab design procedure with example design of one. The slab has to carry a distributed permanent action of 1. Reinforced concrete slab design and detailing guidelines for depth of slab, loads on slab, reinforcement guide for oneway and twoway slabs as per is 456. Concrete beam design concrete design software that designs oneway flexural members, including beams, oneway slabs and continue reading. Istructe ec2 concrete design manual 9 foreword the eurocode for the design of concrete structuresec2 is likely to be published as a euronorm en in the next few years. Concrete slabonground construction reflects the three pillars of sustainability social, environmental and economic. Slabs can be onground, suspended, or a mix of both. In cases in which the backfill supports exterior slabs, patios, stairs, or. For the diy concrete slab designer, there are extensive graphics and resources available to build a perfect slab for the kit home builder. There is a nominal strength that is reduced by a factor which must exceed the factored design stress. Lecture series on design of reinforced concrete structures by prof.
Concrete floor slab construction process includes erection of formwork, placement of reinforcement, pouring, compacting and finishing concrete and lastly removal of formwork and curing of concrete slab. Foreword the reinforced concrete design manual sp1711 is intended to provide guidance and assistance to professionals engaged in the design of castinplace reinforced concrete structures. Asce, secb course content slab on grades construction. It may be that here is a time when the owner builder has to get help, because laying slabs is an arduous, time consuming process best suited to. Twoway joist concrete slab floor waffle slab system. Floor slabs can range from a simple residential basement slab to a heavyduty industrial floor.
Handbook on good building, design and construction in the. Concrete mix design definition concrete mix design is defined as the appropriate selection and proportioning of constituents to produce a concrete with predefined characteristics in the fresh and hardened states. Following are the rcc slab design and detailing guidelines. Ce 433, fall 2006 slab design example 1 6 design a oneway slab for an exterior bay of a multistory office building using the information specified below.
They can be insulated, both underneath and on the edges. Sci p300, composite slabs and beams using steel decking. Pdf structural design analysis of reinforced concrete. How to design concrete structures using eurocode 2. How basic foundations are built, including slabs, perimeter foundations, concrete blocks, and piers. Department of housing and urban development office of policy development and research washington, dc, and the national concrete masonry association herndon, va, and the portland cement association skokie, il, and the national association of home builders. Tm 580912 concrete floor slabs on grade subjected to. Introduction concrete slabs on grade are a very common type of concrete construction. Slab design reading assignment chapter 9 of text and, chapter of aci31802 introduction aci318 code provides two design procedures for slab systems. This guide covers the design and construction of composite slabs and beams, and. Footing systems reference as 2870 residential slabs and footings construction and bca.
Manual for the design of reinforced concrete building structures to ec2 published for the institution of structural engineers. Part 4 concrete foundations small house design and. The concrete slab on grade is the most popular foundation. The first reinforced concrete design manual formerly titled aci design handbook was developed in accordance with the design provisions of 1963 aci 318 building code by aci committee 340, design. The eurocode for the design of concrete structuresec2 is likely to be published as a euronorm en in the next few years. This section provides information and resources related to design of precast concrete systems, as well as integration of precast with other systems. Design examples 82 this chapter illustrates the seismic design of precast concrete members using the nehrp recommended provisions referred to herein as the provisions for buildings in several different seismic design categories. Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft.
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